Problem pg_upgradecluster from 9.1 to 9.3

Hi all,

I have a problem when I try to upgrade my pgsql 9.1 cluster to 9.3

This is my output :

root(at)p2tstl2mondbm:/var/lib/postgresql# pg_upgradecluster 9.1 main
Disabling connections to the old cluster during upgrade...
Restarting old cluster with restricted connections...
Removed stale pid file.
Creating new cluster 9.3/main ...
config /etc/postgresql/9.3/main
data /var/lib/postgresql/9.3/main
locale C
port 5433
Disabling connections to the new cluster during upgrade...
Error: automatic upgrade of tablespaces is not supported
Re-enabling connections to the old cluster...
Re-enabling connections to the new cluster...
Error during cluster dumping, removing new cluster

On my db I have 2 tablespaces :

postgres=# \db+
List of tablespaces
Name | Owner | Location |
Access privileges | Description
--------------+----------+-----------------------------------------+-------------------+-------------
envers | postgres | /var/lib/postgresql/tablespaces/envers
| |
indexes_fast | postgres | /var/lib/postgresql/tablespaces/indexes
| |
pg_default | postgres | | |
pg_global | postgres | | |
(4 rows)

postgres=#

This is my path config :

postgres(at)p2tstl2mondbm:~$ cd /var/lib/postgresql/
postgres(at)p2tstl2mondbm:/var/lib/postgresql$ ls -all
total 36
drwxr-xr-x 6 postgres postgres 4096 Dec 4 12:22 .
drwxr-xr-x 27 root root 4096 Dec 4 08:17 ..
drwxr-xr-x 4 postgres postgres 4096 Oct 7 07:42 9.1
drwxr-xr-x 2 postgres postgres 4096 Dec 5 10:58 9.3
drwx------ 2 postgres postgres 16384 Mar 4 2013 lost+found
drwx------ 4 postgres postgres 4096 Mar 8 2013 tablespaces
postgres(at)p2tstl2mondbm:/var/lib/postgresql$

My pgsql versions :

i postgresql 9.1+134wheezy4
all object-relational SQL database (supported version)
ii postgresql-9.1 9.1.14-0+deb7u1
amd64 object-relational SQL database, version 9.1 server
ii postgresql-9.3 9.3.5-1.pgdg70+1
amd64 object-relational SQL database, version 9.3 server

I don't find any tips on the web to help me

Thank you for your advice.

Matthieu Lejeune